Help me please with this problem

hallo;
i have a problem with the WAP54g
in my network i have a router and a WAP54g repeater i want to repeat from the wap54g to a nother wap54g what can i do????
note; i already tried to put the mac address for the first repeater on the second one put its not working and from the router to the first repeater its working 100%

I just put the first one in access point mode, no other special settings.
Then the second one (repeater), go into AP Mode page, select the wireless repeater option and put in the MAC address of the first wap54g.

If this doesn't work, try selecting "AP client mode" on the repeater, press the site survey button, select the AP you want to connect to, then change to wireless repeater mode and copy & paste the address into it from the box above.